I'm not going to get into the Noah Shumacher bashing. I bought the mods after reading all I could find about them. Here's the posted results comparing the before and after installation.

My ears will be the final test and as far as keeping the unit stock, it's too late and I really don't care. I got the same flack when I converted my Klipsch KHorns to Greg Roberts Volti modifications. The only thing Klipsch in them now is the wood cabinet and I've never regretted it for a minute. It's time to start respecting each other here and realizing that our purpose is not to police but to support.

I'm not going to get into the Noah Shumacher bashing. I bought the mods after reading all I could find about them. Here's the posted results comparing the before and after installation.

My ears will be the final test and as far as keeping the unit stock, it's too late and I really don't care. I got the same flack when I converted my Klipsch KHorns to Greg Roberts Volti modifications. The only thing Klipsch in them now is the wood cabinet and I've never regretted it for a minute. It's time to start respecting each other here and realizing that our purpose is not to police but to support.

Click to expand...

KHorns...Ooooohhhh..If I ever build a new house, they will be included in the mortgage.

So back to your restore ... have you changed out the main caps yet, if so did you bump up to 15,000 or 18,000?
I have one that I did not do anything to other than rebuild the PS because the original owner installed or had installed an incorrect voltage relay. Did a number on some of the traces too.

So back to your restore ... have you changed out the main caps yet, if so did you bump up to 15,000 or 18,000?
I have one that I did not do anything to other than rebuild the PS because the original owner installed or had installed an incorrect voltage relay. Did a number on some of the traces too.

Click to expand...

That's funny, I am looking at the package from Mouser with two 18000uf 75v caps in it! Mailman just dropped it off. Yea, the reason my friend decided to do this is the headphone jack had been damaged. That was an easy fix and once I powered it up I realized it was in pretty good shape for 40 years old. The main caps don't show any signs of leaking and all the voltages are in spec. After thinking about it he decided to move forward. It is very well built and fairly easy to work on so here we go!

Agreed, it is a fine sounding amp and mine still sound great too. I think that replacing the mains with 15,000uf instead of going higher and then leave it alone for the time being will be my plan.
Good luck with the restore.

I confess to not having read the entire thread. Oops. It may be taken that I don't care that the person being pointed out for past, and maybe present and future actions was okay by me and was being defended by me. I only meant that we, as the AudioKarma community should be about supporting each other and not disrespecting each other's opinions. I snipped out and repeated what I was addressing with no consideration as to the previous posts. Keeping it all positive as much as possible is my goal and 99.9% of AK members. I'm sorry I didn't read the whole thread and realize what I may have been presenting. People have been screwed by several technical vendors and I'm never in favor of these actions!!

I confess to not having read the entire thread. Oops. It may be taken that I don't care that the person being pointed out for past, and maybe present and future actions was okay by me and was being defended by me. I only meant that we, as the AudioKarma community should be about supporting each other and not disrespecting each other's opinions. I snipped out and repeated what I was addressing with no consideration as to the previous posts. Keeping it all positive as much as possible is my goal and 99.9% of AK members. I'm sorry I didn't read the whole thread and realize what I may have been presenting. People have been screwed by several technical vendors and I'm never in favor of these actions!!

Here is my new ground connection. It isn't pretty but the solder joints are solid. In the course of this work the ground screw threads in the chassis became stripped. What I have here is an output transistor mounting screw from my parts bin with a nut on the backside and lockwashers on both sides. The screw head is painted black but only the head. Again, no audible difference. It sounded great before and it still sounds great but I am happier with this connection.

I am having an issue with this unit. The protection relay engages immediately on power on, no delay. That is causing a nasty popping and crackling until the caps charge and the unit stabilizes. Once there it sounds great but I want to correct this. Any guidance would be appreciated.